UFC 170 takes place Feb. 22 at Mandalay Bay Events Center in Las Vegas. The main card airs on pay-per-view following prelims on FOX Sports 1 and UFC Fight Pass. The card is headlined by a women’s bantamweight title fight between champion Ronda Rousey and Sara McMann.

The UFC said the late nature of the injury will mean no replacement fighter will be sought for Cormier, nor will there be a replacement fight added to the event, which now will be complete with 10 fights instead of 11. The UFC did not announce which fight from the preliminary card will move up onto the pay-per-view portion of the show. A welterweight bout between Rory MacDonald and Demian Maia now becomes the co-feature.

The news came just about six hours after Evans wrapped up a media-only conference call, on which he discussed his fight against Cormier. No mention of the injury was made on the call.

Specifics of Evans’ leg injury were not revealed. However, the UFC retreated news from Yahoo! Sports reporter Kevin Iole, who said that UFC CEO Lorenzo Fertitta told him Evans would not require surgery, but would need a month’s worth of rehab.

Evans was going after his third straight win and was tasked with welcoming his longtime friend Cormier to the light heavyweight division for the first time. Cormier was moving down from his longtime heavyweight home, where he won the Strikeforce grand prix in 2012.

As the UFC 189 tour made its last stop in Dublin, featherweight champ Jose Aldo was met with a torrent of abuse from the Irish fans. It might have been unpleasant, but it might also have been just what he needed.